The vet said it was probably a grooming issue, but I would not be thrilled with that answer from someone who did not actually examine my cat.

Here's a story that turned out, after veterinary examination and blood work, to apparently be just a winter coat transition issue.

Thyroid problems...

It's common for older cats to develop hyperthyroidism. Hyperthyroidism is caused by a (usually) benign growth in the thyroid gland, which causes overproduction of the thyroid hormone.

This can result in weight loss despite a good appetite, but more mild cases may not.

Unfortunately, a number of other diseases, including diabetes can include increased appetite with weight loss. At his age, he's prone to these and other problems that we see in elderly cats.

Has he had blood work done recently? Some cats make it to age 14 without ever having blood work, but at his age, it's long past time for that.

Has he experienced any weight loss? If he's in the beginning stages, you may not have noticed.

What I would do is get a digital scale and weigh him every 3 to 4 days. If he won't stay still on the scale long enough, you can weigh yourself first, then pick him up and weigh both of you to get his weight.

The content on cat-lovers-only.com is for education and information only. It should not be used as a substitute for professional veterinary advice, diagnosis, or treatment. For medical advice about your cat, please see your veterinarian.